Electric accumulator.



Patented my l5, |902.

No. 704,744. Y H'. HEINICKE.

ELECTRIC ACCUMULATOB.

(Application meid Apr. 28, 1902.)

(Nro Model.)

UNITED STATES PATENT OEEICE.

HERMANN HEINICKE, 0F SCHOENEBERG, NEAR BERLIN, GERMANY.

ELECTRIC Acc UAM u LATO n.

SPECIFICATION forming parten Letters Patent No. 704,744, daten .my 15, 1902.

Application filed April 28, 1902.

To a/ZZ whom .it may concern.: Be it known that I, HERMANN HEINICKE, subject of the German Emperor, residing in Schoeneberg, near Berlin, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Electric Accumulators, of which the following is a specifica#y tion.

My invention relates to an improved electrode for secondary batteries. -The electrically-conducting base carrying the active material presents grooves or channels Vof any suitable shape running from top to bottom. Inwardly-slantin g horizontal strips or brackets are provided connecting the outer portions of the f groove formed by any two or more adjacent walls. hen the active'ma-y terial is filled into the grooves, it is penetratedV by these strips, whereby it is rmly held to' gether and other advantages secured.

My invention is illustrated by the annexed drawings, which show several forms ofcoustruction of the new electrode. n

Figure l is a horizontal section through the base carrying the active material. Fig. 2 is a like view of a modified constructionvof the base, and Fig. 3 a similar view ofa sec-'- ond modification of the same. Fig. 4 is an elevation of the plate shown in Fig. 2. V

Referring more particularly toFigs. Zand 4, the walls at of the base or plate, which, if desired, may be perforated in an appropriate manner, form angular grooves running from top to bottom. The outer portions of the walls oi each of these grooves are connected by strips b, which are horizontally located and incline inwardly. 'When the active Ina-- terial is applied, an intimate contact between Serial ND. 105,058. (No model.)

`the plate proper and the material is thus effected, and the latter is prevented from separating from the plate even when exposed to violent concussion. By means of these strips the active material is held well together and thorough conduct-ion from it insured. The walls of the grooves maybe madeof extremely thin material without fear of the plate bending, since the construction adopted is exceedingly resistant.`

In Fig. I an electrode is shown having V- shapedf channels, the strips b extending across the top of each V. y

In Fig. 3 the base in plan view displays theform of across, and the strips b unite theedges of the-four grooves.

It is obvious that other forms of base may be adopted and the strips b correspondingly applied withoutdeparture from the essential feature of my invention.

Having nowdescriloed my invention, I de'- lcla're that whatI claim as new is An accumulator? electrode comprising a conducting-base presenting angular grooves extending from the top downward, and substantially horizontal strips, inclining inward and'connectingthe outer portions of each groove formed by adjacent walls, substantiallyasand lfor the purpose hereinbefore set'forth.

In r testimonywhereof I have hereunto signedmy name in the presence of two subscribing witnesses.

HERMANN HEINICKE.

Witnesses z ELSA Forez-1, ENRrQUE WITTE. 

